Interesting read but unfortunately she is still missing:

http://www.phoenixvillenews.com/site/news.cfm?newsid=17793066&BRD=1673&PAG=461&dept_id=17915&rfi=6

Interesting to note that in the 1994 segment, Mickey doesn't really point the finger of suspicion at the mother, but said he wouldn't put it past her either. Now, he's convinced she is responsible. Quite a change of mind I would say.